These 3" x 5" cards were initially prepared to serve as an index to Samuel Penniman Bates' "History of Pennsylvania Volunteers, 1861-1865," (Harrisburg, 1869-1871). The Office of the Adjutant General later expanded the scope of the cards by transcribing onto them data found on the original Civil War Muster Rolls and Related Records, 1861-1866 {series #19.11}. The information generally includes the soldiers' names, military units, Bates' citations (volume and page), ages at enrollment, descriptions (complexion, height, color of hair and eyes), residences and birthplaces; the dates and places where enrolled; the dates and places where mustered in; and the dates of discharge. The listing is not inclusive.

These cards, bearing the title "Mexican Emergency, Call of President, June 18, 1916," contain the following information about veterans: name and rank, regiment and company, age and place of birth, a physical description (height, complexion, hair and eye color), date of commission or enlistment into service, home station and date of rendezvous, and date of acceptance into United States service. Additional remarks may indicate the date that the soldier's enlistment was to expire and the name and address of a person to be contacted in case of an emergency. All of the cards also bear a stamp indicating that a Mexican Service Medal was issued to the veteran, along with a corresponding number.

These cards were originally submitted by veterans and their survivors who applied for service medals in accordance with the Act of April 21, 1937 P.L. 331, sections 1 and 2. Information provided about each veteran consists of name and serial number, place of residence at time of entry into service, date and place the veteran entered into service, rank, military unit to which attached, place and date of honorable discharge, and the signature of the applicant. Also present are the initials of the person by whom the remittance was received and of the person acting on behalf of the Adjutant General, and each card is stamped with the date of approval. The reverse side of each card shows the name of the veteran or survivor applying for the medal, and the residence to which the medal was to be mailed.

The card file of veterans who participated in the Spanish-American War was created by the Office of the Adjutant General in 1941 from information taken from the official records of the United States War Department. Information found about each veteran includes name, race, residence, place and date of birth, date and place of enlistment, military organization to which attached, rank, and dates serving overseas in either Cuba or the Philippines. Sometimes extensive comments at the bottom of the cards provide information on the reasons for, and the type of, discharge as well as a record of prior military service.

Arranged alphabetically by surname of soldier. The abstract card file contains transcriptions of data extracted from original records in the custody of the State Archives concerning Revolutionary War service in the Pennsylvania Militia, Pennsylvania Line, and the Navy. Note that duty after November 1783 is not considered Revolutionary War service. Information provided is name and rank of soldier, whether active or inactive duty, county of residence, battalion in which served, and record from which information was extracted. Also noted are whether soldier was delinquent and fined or whether militia fines were abated.

The entry "Active Duty" indicates that the soldier saw active duty in either the Pennsylvania Militia or the Pennsylvania Line while "Inactive Duty" indicates that the soldier did not necessarily see active duty. Associators were volunteers who comprised the Military Association, a civilian reserve designed to repel any invasion of Pennsylvania until the collapse of the Association in the winter of 1776-1777. The Pennsylvania Militia was organized under an Act of the Assembly of March 17, 1777 that required compulsory enrollment by constables of all able-bodied white males between the ages of 18 and 53 to repel invaders. The "Flying Camps" were special battalions of Pennsylvania Line troops recruited from the Pennsylvania Associators. Rangers were soldiers who served long periods of enlistment to protect the frontier against Indian incursions. Entries for Depreciation Pay Certificates apply to soldiers who served 1777-1780 when the currency was depreciating and were paid in Continental Bills of Credit that quickly lost value. To compensate for such depreciation, each soldier of the Pennsylvania Line who remained in service in 1781 was awarded a substantial sum in Depreciation Pay Certificates which were both interest bearing and negotiable. In addition, at the end of the war arrears and allowances due were met by issuing to each soldier still in service a number of interest-bearing final settlements called Pierce's Certificates (named after the paymaster who dispensed them).

Some cards show a certificate number that relates to the Militia Loan of 1784-1785. This loan was established to pay individuals for services and goods provided during the Revolutionary War that had not been reimbursed at that time. Note that not all certificate numbers give additional information.

Index card file of the names of Pennsylvania militia officers who served during the American Revolution, in Indian campaigns in northwestern Pennsylvania, and in quelling the Whiskey Rebellion. The cards are arranged alphabetically by surname of officer. Information provided is name, county, rank, company or battalion, dates of service, township, and occasionally district within township. In rare cases, other pertinent information is provided such as place of burial, wounds received, names of children, names of any expeditions or campaigns, name of person whom they succeeded, and date discharged.

Arranged alphabetically by surname of veteran. Names generally read from left to right: Last, Middle, First.

Consists of 4" x 6" cards originally maintained by the Office of the Adjutant General. Data generally shown about each veteran includes name, rank, age, physical description (height, complexion, hair and eye color), occupation and residence; the date and place of enlistment; the date and reason for discharge; and the unit (company and regiment) to which assigned. Information about federal service rendered by the veteran and the date of death or first appearance in the military records also routinely appears.